Hand telephone



June 7, 1927.l 1,631,607

0. SOL-DAN mmv TELEPHONE Filed-sept. 11.l 1925 Inuen nr' FUE?.

Patentes' June 7, 1927.

- vUNITED STATES PATENT OFFICE.

OTTO SOLDAN, F BEELIN-SIEMENSSTADT, v.(srERllllLANY, ASSIGNOR .T0 SIEMENS &

HALSKE AKTIENGESELLSCHAFT WERNERWEBK, 0F vSJIEMENSSTADT, NEAR BER- LIN, GERMANY.

HAND TELEPHONE.

' Application led September 11, 1925, Serial No. 55,641, and in Germany December 5, 1924.

For cheapening the manufacture of han-d telephones fortelephonie purposes it -has already been proposed to'construct the handle together withv the housings for the s reception of the telephone and the microphone of one single piece.

The invention aims at a further cheapeni ing and is directed particularly to the easy accessibility of the internal parts of the lo hand 'telephone so as to allow a single assembling and good observation. According to the invention by the handle and its housings for the microphone and telephone consisting ofitwo loosei ly connected halves which are separated in a longitudinal direction. By dividing in this manner a substantial cheapening of the compressed body is achieved, as this arrangement enables the use of a. simplified pressing shape whereby a reduction of scrap is brought about and a simple embedding of the, essential metal inserts is permitted..

Moreover this dividing of the compressed body facilitates an accessibility and visibil- 2@ ity of the inner parts which is impossible with the -usual executions.

According to the invention the tw'o parts of the compressed body are constructed of a compressed insulated composition which 3o preferably is formed of artificial resin and paper, so that a greater tenacity than is usual in such insulating compositions is obt-ained. A further-simplification is broughtabout in accordance with the invention' by the hollow space for the reception of the microi5 thereto. Figure 3 depicts in a side elevation I and 9 forms the the hand telephone composed of two mutual-4 ly connected halves.

The compressed body of the microtelephone comprisin T the two similar halves 6 handle 1 at its central portion whilst oblique to this there are arranged the housings 2 and 3 for the telephone 4 and the microphone 5.

this is achieved y A mixture of articial. resin and paper is employed as a material` for the compressed body.' The two halves can, of course, also be made from any other insulating material suitable for die-casting. In one half (6) of the compressed body -metal inserts 7 are embedded. These insert-s make the conductive connection from the telephone 4 to the connecting cord 8 and at the same time increases the strength of the handle l. The .inserts 7 can be so proportioned that a definite total weight is given to the hand telephone.

As the inserts 7 penetrate into the space provided in the top covering half 9, it is guided in a satisfactory manner to coincide with the lower half. On the micro hone side of the handle 1 the space provided in the housing 2 is closed to the outside by a walling 10 which serves as a mouthpiece for the microphone 5 so that special attaching means for the otherwise specially made portion of the mouthpiece are not necessary. The conductive connection from the inserts 7 to' the telephone 4 takes place over the fastening screws Al1 of the telephone case 4. Whilst the coimection to the inserts 7 and the microphone casing 5 from the connecting cord 8 is eected over-the connecting screws 12. As will be seen, the assembly of such hand telephones is exceedingly simple and enables the apparatus to be inspected for its effectiveness when in the Vopen condition before the two halves 9 and 6 are joined together.

The two halves 6 and 9 are held together by means of three screws 13 which t in holes of the top portion 9 and screw into inset metal portions 14 in the lower portion 6.

What is claimed is:

1. A hand telephone having ahandle cousisting of two detachabl mutually connected halves, each half provided at its ends with hollow places for the reception of the microphone and receiver.

2. A hand telephone having its handle provided at its ends with hollow places for the reception of the microphone and receiver, said handle consisting of two detachable mutually connected halves, said handle formed of insulating material and the end for receiving the microphone being shaped to form a mouthpiece.

3. A hand telephone having its handle provided at its ends with hollow places for itl@ the reception of the microphone and receiver, said handle consisting of two detachable mutually connected halves, conductive elements partially embedded in one of said halves for connecting the microphone and receiver to a connecting cord, said connected halves forming the sole means for holding all of said apparatus in position.

4. In a hand telephone having its handle separable intov two detachable halves having their ends provided with openings for the reception of a microphone and a receiver, rigid conductive elements embedded in one of said halves and penetrating the other half to guide it in so that the two halves coincide in deiinite fixed relation to each other.

5. A hand telephone having its handles separable longitudinally into two halves, one half containing hollow spaces for the reception of the microphone and receiver and having conductive elements embedded therein,` the other half containing openings fitting around said apparatus, and means for de- Lesmo? tachabl fastening said second half to said first ha f.

6. In a hand telephone, an insulating handle separable into two detachably mutually connected halves provided at their ends lwith hollow places for the reception of the microphone and the receiver, conductive elements embedded in one of said halves for connecting the receiver to a connecting cord, said receiver being fastened to and held insaid handle by said conductive elements.

7. A hand telephone having its handle made of insulating material and provided at its ends and .through its center with hollow places for the reception of the microphone, receiver and conductive elements,

said handle consisting of two detachable mutually connected halves for insulating and fastening said apparatus together as a unit.

In witness whereof, I hereunto subscribe my name this 20th day of August, A. D. 1925.

o'rTo s oLDAN. 

